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Brand new SONY VGP-BPS24 11.1V 4400mAh laptop battery

When using your computer for the first time, make sure the computer is plugged into an AC power source. At the time of delivery, the power button or the power switch is disabled until the computer is plugged into an AC power source.
Make sure your computer is securely plugged into a power source and turned on and the power indicator light is lit.
 Make sure the battery pack is installed properly and charged.
 Disconnect all connected USB devices (if any), and then restart your computer.
 Remove all extra memory modules you may have installed since purchase, and then restart your computer.
 If your computer is plugged into a power strip or an uninterruptible power supply (UPS), make sure the power strip or UPS is plugged into a power source and turned on.
Unplug the power cord or the AC adapter, and remove the battery pack. Wait three to five minutes. Reinstall the battery pack, plug the power cord or the AC adapter, and then turn on your computer.
Condensation may cause your computer to malfunction. If this occurs, do not use the computer for at least one hour.
Check that you are using the supplied Sony power cord or AC adapter.
If you are using an external display, make sure it is plugged into a power source and turned on.